Annual report pursuant to Section 13 and 15(d)

8. STOCK OPTIONS AND WARRANTS (Details Narrative)

v3.7.0.1
8. STOCK OPTIONS AND WARRANTS (Details Narrative) - USD ($)
12 Months Ended
Apr. 30, 2017
Apr. 30, 2016
Stock based compensation - options $ 597,400 $ 788,770
Stock based compensation - warrants 0 $ 905,340
Stock and Warrant Purchase Agreement [Member]    
Warrants issued, shares   17,000,000
Stock issued new, shares   17,000,000
Proceeds from sale of common stock   $ 1,020,000
Fair value of warrants issued   $ 967,000
Warrants [Member]    
Aggregate fair value of warrants issued $ 40,000  
Warrants issued, shares 1,638,796 17,000,000
Warrants expired, shares (18,755,200)  
Class A Warrants [Member]    
Warrants converted, shares 18,755,200  
Proceeds from warrant conversion $ 1,380,720  
Debt converted $ 25,920  
Class B Warrants [Member]    
Warrants converted, shares 2,318,000  
Proceeds from warrant conversion $ 278,160  
Class D Warrants [Member]    
Warrants issued, shares 18,755,200  
Warrants expired, shares 18,755,200  
Options [Member]    
Options granted in period 23,550,000 15,600,000
Aggregate intrinsic value $ 238,000  
Aggregate intrinsic value per share $ 0.078  
Unvested Stock Options [Member]    
Options granted in period 23,550,000 15,600,000
Unrecognized compensation expense weighted-average period 8 months  
Warrants [Member] | March 23, 2015 [Member]    
Stock based compensation - warrants $ 791,506 $ 791,506
Warrant expiration date Mar. 23, 2020 Mar. 23, 2020
Warrants [Member] | March 23, 2015 [Member]    
Stock based compensation - warrants $ 113,834 $ 113,834
Warrant expiration date Dec. 31, 2015 Dec. 31, 2015
Employee Options [Member]    
Options granted in period 9,250,000 15,600,000
Stock based compensation - options $ 557,322 $ 789,000
Unrecognized compensation expense $ 515,022  
Non-Employee Options [Member]    
Options granted in period 14,300,000 0
Stock based compensation - options $ 40,078 $ 0
Non-Employee Options [Member] | Exchange for Services [Member]    
Stock based compensation - options $ 40,078 $ 0
Non-Employee Options [Member] | Options [Member] | Guaranteed Options [Member]    
Options granted in period 600,000  
Non-Employee Options [Member] | Options [Member] | Non-Guaranteed Options [Member]    
Options granted in period 12,500,000  
Placement Agent [Member] | Common Stock Purchase Warrant [Member] | December 15, 2016 [Member]    
Warrants issued, shares 769,231  
Placement Agent [Member] | Common Stock Purchase Warrant [Member] | March 21, 2017 [Member]    
Warrants issued, shares 869,565